MIL-DTL-38999 Series I connectors are engineered for rugged environments, featuring up to 128 contacts within a sealed insert. With an operating temperature range of -65 °C to 200 °C, these connectors offer reliable performance in harsh conditions. Available in various shell sizes and insert arrangements, they accommodate M39029 rear release crimp contacts. The high-strength aluminum shells come in multiple plating options, including cadmium-free finishes for RoHS compliance. Offering front wall mount, rear wall mount, and jam nut receptacles, these connectors ensure secure connections in military and industrial applications. With Bayonet coupling and straight plug design, they provide efficient connectivity with conductivity and environmental resistance.